This smoothbore single limb circuit is a PVC breathing tube with a smooth inner wall, sold as a single limb without a breathing bag or mask. It is used where a corrugated single limb circuit would add more resistance or more weight than the application needs, and it is supplied in several lengths.
The smooth inner wall is the defining feature of this tube. With no ribs to disturb the gas flow, resistance is lower than in a corrugated tube of the same diameter, and the tube is lighter, so there is less pull on the airway or on the connector it is attached to. The wall is also transparent, so condensate can be seen as it forms rather than being hidden by ribs.
The trade-off is kink resistance. A smooth PVC tube bends less forgivingly than a corrugated one, so it needs to be routed and supported rather than allowed to hang freely.
For a full ventilator circuit with water traps and limbs, see our smoothbore ventilator circuit. For the corrugated equivalent of this tube, see our corrugated single limb circuit.
Key Features:
Smooth inner wall for lower resistance than corrugated tubing
Lighter than a corrugated tube of the same diameter
Transparent wall so condensate can be seen
Sold as a single limb, without breathing bag or mask
Available in several lengths
Applications:
Smooth inner wall for lower resistance than corrugated tubing
Lighter than a corrugated tube of the same diameter
Transparent wall so condensate can be seen
Sold as a single limb, without breathing bag or mask
Available in several lengths
Important Notes:
Single use only unless the tube is specified as reusable.
Do not use if the package is damaged or opened.
This is a single limb circuit. It does not include a breathing bag, mask or valve.
Smoothbore tubing kinks more readily than corrugated tubing. Support the tube and keep it clear of the bed frame and equipment.
Do not allow the tube to become compressed or trapped.
Check that the connectors are secure at both ends before use.
Do not allow condensate to reach the patient.
This product is a breathing circuit. It does not provide ventilatory support on its own.
